[题目]The quality of the goods in this firm is to the customers, as there has been no complaint since it was founded.A. guaranteed B. pretended C. demanded D. extended 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】The quality of the goods in this firm is _______ to the customers, as there has been no complaint since it was founded.

A. guaranteed B. pretended C. demanded D. extended

【答案】A

【解析】

试题分析：该公司的产品质量得到保证，因为没有投诉

A考查被动语态，A. guaranteed 保证，B. pretended 假装，C. demanded要求，D.extended延伸。本句意为该公司的产品质量得到保证，因为没有投诉。所以答案选A。

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初中学业考试复习学与练指导丛书系列答案

To many of us, the bilateral symmetry（左右对称） that characterizes the human face and the animal kingdom may be one of the first impressions we get of the world. If you reflect the left half of the face or body in a mirror, you obtain something that closely 【1】 the right half. Bilateral symmetry is so common that it could 【2】 be due to chance. If you think of the human body as a collection of some ten thousand trillion molecules, then there are countless ways to combine them into non-symmetrical shapes than into symmetrical ones. Why is it, then, that bilateral symmetry is so common? Given that all life on Earth slowly 【3】 through natural selection, the fact that we and many animals possess left-right symmetry, not, say, up-down or front-back symmetry, must have somehow 【4】 certain advantages. But how?

We can understand at least some parts of this natural “engineering” 【5】 by considering some simple physical principles. First, on the surface of the Earth, the Earth’s gravity introduces a 【6】 difference between up and down. Animals had to be able to remain stable and to cope with their weight under Earth’s perpetual downward pull. The ability to move further enhanced the difference between top and bottom.On one hand, birds had to handle the aerodynamics of flying, and on the other, be able to handle landing. Land animals had to develop some “mechanical” appendages (in other words, legs) to allow them to 【7】 themselves efficiently.

Animal locomotion was probably also 【8】 for the front-back asymmetry. Whether it was a bird, or a fish, having the sensory organs and the mouth in the front could mean the difference between finding lunch or missing it. The digestive and reproductive systems were pushed to the rear. Having eyes, ears, and noses in the front was also 【9】 for the avoidance of predators, and for the ability to explore an area before actually entering it. Life 【10】 that are fixed in one place or that move very slowly, such as trees or jellyfish, tend to have a different kind of symmetry, similar to that of a cone(球果) — they produce similar reflections in any mirror passing through their central axis.

【题目】Mary finally _________ Bruce as her life-long company.

A. received B. accepted C. made D. honoured

【题目】After five hours' drive, they reached __________ they thought was the place they'd been dreaming of.

A. that B. where C. which D. what

【题目】Most staff are against the new rules, but they have come into being __________.

A. whatever B. therefore C. anyway D. thus

【题目】Lenovo has brought out a new laptop ________ low cost will make it attractive to students．

A．which B．where C．whose D．what

【题目】

HP Photo and Document All-in-One Printers are designed for families and other home users who want a device capable of printing everything from documents, emails and web pages to rich, bright lab-quality photos—with copy and scan tools too.

Intended to be used with ink cartridges(墨盒) using only HP original electronic system. Cartridges with modified or non-HP electronic system may not work, and those that work today may not work in the future. Twice as many photos.

Print up to twice as many pages with Original HP high-yield ink cartridges. HP 64 ink cartridges deliver authentic colors so all your prints will shine. Create wonderful borderless photos and leaflets—right in your home.

The power of your printer in the palm of your hand.

Printing photos just got easier—from social media, the cloud, and your camera-roll gallery.

Amazing scanning, now on your smart phone. Scan and share to email or the cloud—from virtually anywhere.

Ordering ink has never been easier—directly through the app.

Easily print photos and everyday documents directly from your smart phone or tablet.

A new level of wireless connectivity you can count on.

Get simple Wi-Fi setup in minutes, and start printing fast.

Return & exchange information

HP.com will accept returns or exchanges for this product up to 30 days after delivery. A restocking fee may apply.

【1】Which statement is true of this type of printer?

A.It is a portable printer designed for home and office use.

B.It is a multi-function printer producing high-quality photos.

C.It is an easy-operation printer with a two-year free care pack.

D.It is a wireless-connected printer supported by modified cartridges.

【2】Which of the following words best describe its ink cartridges?

A.Cost-effective.B.Unavailable.

C.Automatic.D.Eco-friendly.

【3】If you order this type of printer online today, ___________.

A.you can return it without being charged.B.you can save $18.

C.you can get a care pack on discount.D.you will receive it tomorrow.

【题目】 Pigeons (鸽子) may be considered mice of the sky, but some scientists have found greater value in these urban birds: the blueprint for a new generation of flying machines.

Birds can transform the shape of their wings by fanning out their feathers or moving them closer together. Those adjustments allow birds to cut through the sky more flexibly than rigid drones (无人机). Now, using new insights into exactly how pigeons ‘joints control the spread of their wing feathers, researchers have built a robotic pigeon. This research paves the way for creating more light aircraft, says Dario Floreano, a roboticist in Switzerland not involved in the work.

“What’s really cool about this robot is that you can make adjustments in a robotic wing that you could never do when studying flight in a bird”, says David Lentink, an engineer and biologist at Stanford University. A controllable robotic pigeon solves that problem. In flight tests, Lentink’s team observed that bending only the fingers of one wing eased the robot into a banked turn-offering the first evidence that birds may sometimes use just their fingers to direct in flight. In a second study, Lentink’s group used their robotic wing design to confirm another insight into bird flight: how gaps are prevented from forming between feathers on extended wings.

This is the best set of robotic wings yet for testing how birds adjust their flight feathers to move through the air, says Tyson Hedrick, a biomechanist. But “there’s plenty of room for improvement.” For instance, a future flying robot could include a shoulder joint to investigate how waving a bird’s wings up and down influences flight, he says.

【1】What is the newly-found worth of pigeons?

A.They help study other species.

B.They protect other urban birds.

C.They provide proof of mice’s harm.

D.They inspire a new aircraft.

【2】What is Dario Floreano’s attitude to the research?

A.Negative.B.Positive.

C.Neutral.D.Critical.

【3】What do the underlined words “that problem” in paragraph 3 refer to?

A.Pigeons in flight can hardly be observed.

B.People can’t make adjustments in birds’ wings.

C.It is difficult for pigeons to make a banked turn.

D.Pigeons fail to control the spread of their wing feathers.

【4】Where does the text probably come from?

A.A travel journal.

B.A travel brochure.

C.A science fiction.

D.A science magazine.

【题目】Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

Minimum wage laws in the U.S. were first introduced during the 1930s in response to the Great Depression. This period was 【1】 by falling output, falling prices, and falling employment. The National Industrial Recovery Act (NIRA) of 1933 attempted to stop this downward trend by encouraging the 【2】 of trade association agreements that established the lowest price and minimum wages. This was the first time that minimum wages were introduced in major industries. But in 1935, the U.S. Supreme Court ruled that the NIRA was unlawful, and these initial minimum wage agreements came to an end.

In 1938, the Fair Labor Standards Act (FLSA) established a national minimum wage of $0.25 an hour. This Act 【3】 only applied to a relatively small share of the labor force, but has been 【4】 over time so that it now applies to about 90% of all nonsupervisory workers.

Introductory economies textbooks usually first introduce the minimum wage as an application of demand and supply analysis. This starting discussion is usually based on the following 【5】: the labor market is perfectly competitive, the minimum wage covers all workers, and worker productivity is 【6】 by the wage rate.

While minimum wage increases generally receive 【7】 public support, economists have generally argued that such laws will result in an increase in the unemployment rate in low-wage labor markets.

An issue related to that of a minimum wage is a growing movement for a “living wage”.Living wage proposals suggest that the 【8】 minimum wage is too low to allow families to be above the poverty level. Now, 【9】 of this view support “living wage laws” that require the local government to only accept contracts from firms that pay their workers a wage that is high enough to 【10】 the worker above the poverty line. Under Baltimore’s “living wage” requirement, firms must pay a worker an hourly wage that will allow a full-time worker to receive an annual income greater than or equal to the poverty level for a family of three.

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